ADAS Subroutine three9

      SUBROUTINE THREE9(A,P)
C-----------------------------------------------------------------------
C
C  ******************* FORTRAN 77 SUBROUTINE: THREE9  ******************
C
C  PURPOSE:
C        TO CALCULATE THE BURGESS KNOT POINTS
C
C  CALLING PROGRAM:
C        LSTSQ9
C
C  INPUT:
C        (R*8) A - MATRIX CONTAINING REDUCED PARAMETERS
C  OUTPUT:
C        (R*8) P - THE BURGESS KNOT POINTS
C
C  ROUTINES:
C        MATIN1
C
C  DATE:   26/05/99				VERSION 1.1
C
C  AUTHOR: HUGH SUMMERS, UNIVERSITY OF STRATHCLYDE
C
C----------------------------------------------------------------------
      REAL*8              A(9,9),      P(9)